A) \[9\]
B) \[-9\]
C) \[3\]
D) \[-3\]
Correct Answer: D
Solution :
If \[x+y=k\Rightarrow y=-x+k\] is a tangent to the parabola \[{{y}^{2}}=12x,\] then \[k=\frac{3}{-1}=-3\] \[\left[ \because \,\,\,c=\frac{a}{m} \right]\]You need to login to perform this action.
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